A rapid trough-making machine and method with no thickness limitation

Abstract

This invention belongs to the field of pipe trenching technology, and particularly relates to a rapid trenching machine and method with no thickness limitations. The rapid trenching machine includes: a rolling power structure, the output end of which is equipped with a grooving mold and / or a cutting mold; a trenching mold, at least one of which cooperates with the grooving mold to form a grooving module, and cooperates with the cutting mold to form a grooving module, the trenching mold being connected to a mold driving structure; and a pipe body support structure, which supports the pipe body so that the part of the pipe to be trenched extends into the grooving module and / or the grooving module. The pipe body support structure supports and assists the grooving mold / cutting mold in driving the pipe body to roll. This invention can overcome thickness requirements, adapt to steel pipes of various thicknesses, save investment, eliminate the need to purchase extra thick steel pipes, achieve thickness adjustment, and is fast and accurate, minimizing construction time and ensuring project schedule.

Description

Technical Field

[0001] This invention belongs to the field of pipeline trench connection technology, and particularly relates to a rapid trenching machine and trenching method with no thickness limitation. Background Technology

[0002] In large central air conditioning systems, pipes are usually connected by welding or flanges. However, with technological advancements, more and more projects are using grooved connection technology to connect pipes. The most crucial aspect of grooved connection technology is the preparation of the groove.

[0003] The most common grooving technology currently is roller grooving, which uses hydraulic pressure or other methods within a machine to press grooves of a certain depth and width into the pipe wall (the thickness is usually no more than 6mm for pipes below DN300, and no more than 10mm for pipes above DN300). There is also grooving technology, which involves cutting grooves of a certain depth and width into the pipe surface.

[0004] Grooving technology offers fast processing speeds, but because pipes typically have uneven wall thicknesses and cannot achieve perfect circularity, the grooving uniformity and groove depth are inconsistent. This can lead to insufficient groove sealing later on, resulting in potential problems such as water leakage and breakage at connection points.

[0005] The grooving technique first calibrates and processes the outer diameter of the pipe to make it a standard circle, and then performs grooving to ensure that the groove depth is consistent, thereby ensuring the stability of the groove seal and connection.

[0006] Data reference:

[0007] The wall thickness of steel pipes typically used in large central air conditioning water systems is:

[0008] caliber Outer diameter * wall thickness caliber Outer diameter * wall thickness caliber Outer diameter * wall thickness DN125 133*4 DN150 159*4.5 DN200 219*6 DN250 273*8 DN300 325*8 DN350 377*9 DN400 426*9 DN450 478*11 DN500 529*11 DN600 630*12 DN700 720*14 DN800 820*14

[0009] Basic dimensions of grooving:

[0010]

[0011] Basic dimensions table for steel pipe grooving:

[0012]

[0013] Minimum thickness of steel pipe after grooving:

[0014]

[0015]

[0016] The shortcomings of existing technology: Taking DN450 as an example, the steel pipe thickness used in the project is usually 11mm, while the maximum thickness of grooving is generally no more than 10mm, and the minimum thickness of cutting is 11.6mm; at this time, neither grooving technology nor cutting technology can be used, and the only way to achieve grooving is to increase or decrease the thickness of the steel pipe.

[0017] Therefore, based on these issues, a rapid trenching machine and trenching method with no thickness limitations is proposed. This method can overcome thickness requirements, adapt to steel pipes of various thicknesses, save investment, eliminate the need to purchase additional thick steel pipes, enable thickness adjustment, and is fast and accurate. It can minimize construction time and ensure project schedule. This has significant practical implications. Summary of the Invention

[0018] In order to solve the problems existing in the prior art, the present invention provides a rapid trenching machine and trenching method that can overcome thickness requirements, adapt to steel pipes of various thicknesses, save investment, eliminate the need to purchase additional thick steel pipes, achieve thickness adjustment, and is fast and accurate, thereby minimizing construction time and ensuring project schedule.

[0019] The technical solution adopted by the present invention to solve this problem is as follows:

[0020] A high-speed grooving machine with no thickness limitation, comprising:

[0021] A rolling power structure, the output end of which is equipped with a grooving mold and / or a cutting mold;

[0022] The groove mold is at least one in number. The groove mold and the grooving mold cooperate to form a grooving module. The groove mold and the cutting mold cooperate to form a grooving module. The groove mold is connected to the mold driving structure.

[0023] A tube support structure is used to support the tube so that the part of the tube to be grooved extends into the grooving module and / or the cutting module. The tube support structure supports and assists the grooving mold / cutting mold in driving the tube to roll.

[0024] Preferably, it also includes a main support structure, which includes a support base, a support vertical plate, and a support horizontal plate connected in sequence. The rolling power structure is disposed on the support base, and the output end of the rolling power structure passes through the support vertical plate and is connected to the power assembly.

[0025] More preferably, the groove mold includes an auxiliary roller and at least one groove protrusion formed by a circumferential protrusion along the auxiliary roller. The auxiliary roller is rotatably mounted on a roller support frame. The mold driving structure includes a first hydraulic module mounted on a support plate. The free end of the hydraulic rod of the first hydraulic module is connected to the roller support frame.

[0026] More preferably, the grooving mold includes a first support roller and at least one groove concave ring formed circumferentially inward along the first support roller, the groove concave ring being adapted to the shape of the grooving protrusion, and the groove concave ring assisting the grooving protrusion in pressing the groove.

[0027] More preferably, the cutting die includes a second support roller and at least one cutting tool formed along the circumferential protrusion of the first support roller.

[0028] More preferably, the first support roller and the second support roller are detachably connected to the power assembly through their respective mold assembly holes.

[0029] More preferably, the first and second support rollers are coaxially arranged and detachably connected to the power assembly via mold assembly holes. There are two groove molds; one groove mold cooperates with a grooving mold to form a grooving module, and the other groove mold cooperates with a cutting mold to form a grooving module. That is, the grooved concave ring and the cutting tool are integrally formed on the same support roller, with the cutting tool located closer to the support vertical plate than the grooved concave ring. The support roller is detachably connected to the power assembly via mold assembly holes.

[0030] More preferably, the power assembly can be, but is not limited to, a regular prism shaft, and the mold assembly hole can be, but is not limited to, a regular prism shaft hole adapted to the shape of the regular prism shaft. The mold assembly hole is adapted to be mounted on the power assembly and locked and fixed by a locking member. The locking member can include, but is not limited to, a matching locking screw and a locking screw hole.

[0031] Further preferred options include a changeover robot for quickly changing grooving / cutting dies.

[0032] More preferably, the support plate has at least one groove along the axial direction of the rolling power structure, the first hydraulic module is equipped with a slide block that is slidably connected to the groove, and the support plate is also provided with a sliding drive structure for driving the slide block to slide on the groove.

[0033] More preferably, the auxiliary roller is also provided with a wall thickness measuring element for determining the wall thickness of the tube.

[0034] More preferably, the tube support structure includes at least two second hydraulic modules arranged vertically, the output ends of the second hydraulic modules being connected to the clamp, and the tube support structure providing multi-point contact support to the outside of the tube.

[0035] More preferably, the clamp has a U-shaped structure, and the end of the clamp away from the second hydraulic module is equipped with an auxiliary wheel. The tube support structure provides at least four-point contact support to the outside of the tube.

[0036] In a further preferred embodiment, the second hydraulic modules in the tube support structure are arranged in a staggered manner.

[0037] A further preferred embodiment includes a tube manipulator for moving the tube.

[0038] The second objective of this invention is to provide a rapid trough-making method without thickness limitations, comprising the following steps:

[0039] Step 1: Determine the pipe wall thickness

[0040] If the pipe wall thickness is greater than the required thickness for the groove, proceed to step two; otherwise, proceed to step four.

[0041] Step 2: Prepare for grooving

[0042] When the grooving mold and the cutting mold are assembled on the same support roller, the groove to be made in the tube is moved to the cutting mold by the tube support structure, and the inner wall of the tube is pressed tightly against the cutting mold.

[0043] When the grooving mold and the cutting mold are respectively mounted on different support rollers, the cutting mold is mounted at the output end of the rolling power structure. The groove to be made in the tube is moved to the cutting mold by the tube support structure, and the inner wall of the tube is pressed tightly against the cutting mold.

[0044] Step 3: Begin grooving

[0045] The rolling power structure drives the cutting die to roll, and the tube support structure supports and assists the tube to roll with the cutting die. The cutting die cuts the inner wall of the tube until the tube wall thickness is not greater than the required thickness for grooving, thus completing the grooving process. Then, proceed to step four.

[0046] Step 4: Prepare the grooving

[0047] When the grooving mold and the cutting mold are assembled on the same support roller, the groove to be made in the tube is moved to the grooving mold by the tube support structure, and the inner wall of the tube is pressed tightly against the grooving mold.

[0048] When the grooving mold and the cutting mold are respectively mounted on different support rollers, the grooving mold is mounted at the output end of the rolling power structure. The groove to be made in the tube is moved to the grooving mold by the tube support structure, and the inner wall of the tube is tightly attached to the grooving mold.

[0049] Step 5: Begin grooving

[0050] The rolling power structure drives the grooving mold to roll, the pipe body support structure supports and assists the pipe body to roll with the grooving mold, and the mold driving structure drives the groove mold to move down. The groove concave ring cooperates with the grooving protrusion to process the standard groove on the pipe body, thus completing the grooving process.

[0051] The advantages and positive effects of this invention are:

[0052] 1. This invention combines grooving and rolling processes, overcoming the limitations imposed by grooving and cutting techniques on steel pipe thickness, and adapting to steel pipes of various thicknesses; it overcomes problems such as unreliable groove sealing, groove joint breakage, and leakage caused by pipe roundness and thickness issues; it can handle all steel pipe thicknesses without the need to purchase additional thick steel pipes, saving investment.

[0053] 2. This invention can adapt to all common thickness requirements of steel pipes in projects, helping to quickly complete the trenching without changing the original thickness of the steel pipes or requiring additional roundness calibration of the pipes.

[0054] 3. This invention can perform grooving and rolling simultaneously. For pipes whose thickness meets the minimum thickness requirement, grooving can be performed directly. For pipes with a thickness higher than the grooving requirement, cutting can be performed to reduce the thickness before rolling.

[0055] 4. In this invention, the use of a groove mold during groove making can ensure the uniformity of groove making and the consistency of dimensions after processing, thereby increasing the reliability of the groove after installation.

[0056] 5. In this invention, both the grooving module and the cutting module are equipped with double rollers. Under the hydraulic assistance of the mold drive structure, the steel pipe is driven to roll and standard grooves are pressed out. The machine is compact and can process multiple diameters without the need to change parts. Attached Figure Description

[0057] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that these drawings are designed for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, unless specifically indicated, these drawings are intended only to conceptually illustrate the structural construction described herein and are not necessarily drawn to scale.

[0058] Figure 1 This is a schematic diagram of a half-section structure under the grooved mode in Embodiment 2;

[0059] Figure 2 yes Figure 1 A magnified view of a portion of the central grooving module;

[0060] Figure 3 This is a schematic diagram of the half-section structure under the cutting and pressing mode in Embodiment 2;

[0061] Figure 4 yes Figure 3 The main view;

[0062] Figure 5 yes Figure 3 A magnified view of a portion of the center slot module;

[0063] Figure 6 This is a schematic diagram of the structure in the pipe installation state in Example 3. Figure 1 ;

[0064] Figure 7 This is a schematic diagram of the structure in the pipe installation state in Example 3. Figure 2 ;

[0065] Figure 8 yes Figure 6 The main view;

[0066] Figure 9 yes Figure 6 Top view;

[0067] Figure 10 yes Figure 6 The left view;

[0068] Figure 11 This is a schematic diagram of the structure in the tube-removed state in Example 3;

[0069] Figure 12 yes Figure 11 The main view;

[0070] Figure 13 yes Figure 12 Enlarged structural diagram of section C;

[0071] Figure 14 yes Figure 11 Top view;

[0072] Figure 15 yes Figure 11 The left view;

[0073] Figure 16 This is a flowchart of Example 7.

[0074] In the diagram: 1-Rolling power structure; 2-Pipe body; 3-Support base; 4-Support vertical plate; 5-Support horizontal plate; 6-Auxiliary roller; 7-Groogging protrusion; 8-Roller support frame; 9-First hydraulic module; 10-First support roller; 11-Groogging concave ring; 12-Second support roller; 13-Cutting tool; 14-Wall thickness measuring element; 15-Second hydraulic module; 16-Clamp; 17-Auxiliary wheel; A-Groogging module; B-Groogging module. Detailed Implementation

[0075] First, it should be noted that the specific structure, features, and advantages of the present invention will be described in detail below by way of examples. However, all descriptions are for illustrative purposes only and should not be construed as limiting the present invention in any way. Furthermore, any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature shown or implied in the accompanying drawings, can still be arbitrarily combined or deleted among these technical features (or their equivalents) to obtain more other embodiments of the present invention that may not be directly mentioned herein. Additionally, for the sake of simplifying the drawings, the same or similar technical features may be indicated only in one place in the same drawing.

[0076] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. The invention will now be described in detail with reference to the accompanying drawings.

[0077] Example 1:

[0078] A high-speed grooving machine with no thickness limitation includes: a rolling power structure 1, the output end of which is equipped with a grooving mold and / or a cutting mold; a grooving mold, at least one of which cooperates with the grooving mold to form a grooving module A, and the grooving mold cooperates with the cutting mold to form a grooving module B, the grooving mold being connected to a mold driving structure; and a tube support structure for supporting a tube 2 so that the grooving portion of the tube 2 extends into the grooving module A and / or the grooving module B, the tube support structure assisting the grooving mold or the cutting mold in driving the tube 2 to roll.

[0079] In this embodiment, the thickness-unrestricted rapid grooving machine consists of a hydraulic drive module (mold drive structure), a support module (pipe support structure), a rolling power module (rolling power structure), a mold module (grooving mold), a roller module (grooving mold), and a cutting module (cutting mold). It can accommodate steel pipes (pipe bodies) with all common thickness requirements in projects, facilitating rapid grooving without altering the original steel pipe thickness or requiring additional roundness calibration. Furthermore, it can simultaneously perform grooving and cutting. Pipes meeting the minimum thickness requirement can be directly grooved, while pipes thicker than the grooving requirement can be cut to reduce thickness before grooving. The use of a grooving mold during grooving ensures uniformity in grooving and consistent post-processing dimensions, thereby increasing the reliability of the grooved pipes after installation. Both grooving module A and grooving module B employ a double-roller configuration. The grooving mold is driven by a rolling mechanism, which drives the grooving mold and / or cutting mold to roll. The grooving mold and cutting mold are matched to assist in grooving, while the cutting mold can rotate at high speed to cut the pipe wall and thin the steel pipe. Hydraulic assistance from the mold drive structure drives the steel pipe to roll and press out standard grooves. The machine is compact and can process various diameters without the need for parts replacement.

[0080] During grooving, the pipe body 2 is first inserted between the pipe support structure and the grooving module A and / or the cutting module B. Depending on the grooving or cutting requirements, the height of the grooving mold is adjusted via the mold drive structure. The rolling power structure 1 drives the grooving mold and / or the cutting mold to rotate. The pipe support structure supports and assists the pipe body 2 in rolling with the grooving mold or the cutting mold. The grooving mold cooperates with the grooving mold to perform grooving, and the grooving mold cooperates with the cutting mold to perform grooving. Through the rotation of the grooving mold or the cutting mold and hydraulic pressure, the grooving mold is tightly fitted to the pipe body, thus producing a standard groove. This rapid grooving machine, by combining grooving and cutting processes, overcomes the limitations imposed by grooving and cutting technologies on steel pipe thickness, adapting to steel pipes of various thicknesses. It overcomes problems such as inadequate groove sealing, groove joint breakage, and leakage caused by pipe roundness and thickness issues. It can handle all steel pipe thicknesses without the need to purchase additional thick steel pipes, saving investment. It can quickly and accurately produce standard grooves.

[0081] Furthermore, in this embodiment, a main support structure may also be considered, which includes a support base 3, a support vertical plate 4, and a support horizontal plate 5 connected in sequence. The rolling power structure 1 is disposed on the support base 3. The output end of the rolling power structure passes through the support vertical plate and is connected to the power assembly. The rolling power structure may be, but is not limited to, a motor. The output end of the motor passes through the support vertical plate and is connected to the power assembly. The motor, as a power source, will adjust its speed, power, etc., according to the working conditions.

[0082] Furthermore, in this embodiment, the groove mold includes an auxiliary roller 6 and at least one grooving protrusion 7 formed along the circumference of the auxiliary roller 6. The auxiliary roller 6 is rotatably mounted on a roller support frame 8. The mold driving structure includes a first hydraulic module 9 mounted on a support cross plate 5. The free end of the hydraulic rod of the first hydraulic module 9 is connected to the roller support frame 8. The height of the roller support frame 8 and the auxiliary roller 6 can be adjusted through the first hydraulic module 9 to achieve thickness adjustment. Using a groove mold during groove making ensures the uniformity of groove making and the consistency of dimensions after processing, thereby increasing the reliability of the groove after installation. The first hydraulic module can be, but is not limited to, a hydraulic cylinder, a hydraulic rod, etc., which can provide pressure to fix the steel pipe or to provide pressure to the roller.

[0083] Furthermore, in this embodiment, the grooving mold may include a first support roller 10 and at least one groove concave ring 11 formed circumferentially inward along the first support roller 10. The groove concave ring 11 is adapted to the shape of the grooving protrusion 7, and the groove concave ring 11 assists the grooving protrusion 7 in pressing (grooving).

[0084] Furthermore, in this embodiment, the cutting mold may include a second support roller 12 and at least one cutting tool 13 formed along the circumferential protrusion of the first support roller 12, wherein the cutting tool 13 assists the grooving protrusion 7 in grooving.

[0085] Example 2:

[0086] Embodiment 2 of the present invention is a further improvement on Embodiment 1 in order to fully leverage the technical advantages of the present invention. The following is an illustrative example.

[0087] For example: Figure 1-5 As shown, the first support roller 10 and the second support roller 12 are detachably connected to the power assembly through their respective mold assembly holes. Depending on the grooving type, a grooving mold or a cutting mold needs to be installed on the power assembly of the rolling power structure 1. The grooving mode and the cutting mode can be switched at will, providing high flexibility. The power assembly can be, but is not limited to, a regular prism shaft, and the mold assembly hole can be, but is not limited to, a regular prism shaft hole adapted to the shape of the regular prism shaft. The mold assembly hole is adapted to be installed on the power assembly and locked and fixed by a locking component. The locking component can include, but is not limited to, a matching locking screw and a locking screw hole.

[0088] Example 3:

[0089] Embodiment 3 of the present invention is a further improvement on Embodiment 1 in order to fully leverage the technical advantages of the present invention. The following is an illustrative example.

[0090] For example: Figure 6-15 As shown, the first support roller 10 and the second support roller 12 are coaxially arranged and detachably connected to the power assembly through the mold assembly hole. Taking this embodiment as an example, the cutting tool 13 is located on the side away from the support vertical plate 4 relative to the grooved concave ring 11. There are two groove molds. One groove mold cooperates with the grooving mold to form a grooving module A, and the other groove mold cooperates with the cutting mold to form a grooving module B. That is, the grooved concave ring 11 and the cutting tool 13 are integrally formed on the same support roller (the first support roller 10 and the second support roller 12 are coaxially connected), the cutting tool 13 is located on the side away from the support vertical plate 4 relative to the grooved concave ring 11, and the support roller is detachably connected to the power assembly through the mold assembly hole.

[0091] In this embodiment, the rapid grooving machine can adapt to steel pipes (pipe bodies) with all common thickness requirements in the project, helping to quickly complete grooving without changing the original thickness of the steel pipe or requiring additional roundness calibration of the pipe. The grooving concave ring 11 and the cutting tool 13 are coaxially arranged, enabling simultaneous grooving and rolling. For pipes whose thickness meets the minimum thickness requirement, grooving (rolling) can be performed directly. For pipes with a thickness higher than the grooving (rolling) requirement, cutting can be performed first to reduce the thickness to meet the requirement before grooving. Standard grooves can be pressed out. The machine is compact and suitable for processing steel pipes of various diameters without the need to change parts, thus improving work efficiency.

[0092] Furthermore, in this embodiment, the power assembly may be, but is not limited to, a regular prism shaft, and the mold assembly hole may be, but is not limited to, a regular prism shaft hole adapted to the shape of the regular prism shaft. The mold assembly hole is adapted to be mounted on the power assembly and locked and fixed by a locking member. The locking member may include, but is not limited to, a matching locking screw and a locking screw hole.

[0093] Example 4:

[0094] This rapid grooving machine can also be used in conjunction with a replacement robot assembly for quickly changing grooving molds or cutting molds. The replacement robot assembly may include a replacement robot structure for gripping the support rollers, a replacement robot arm structure for moving the replacement robot structure, and a screwing structure for turning screws to quickly unlock or lock the locking parts, thereby unlocking or locking the relative position between the mold assembly hole and the power assembly, and then quickly changing or installing the grooving mold or cutting mold.

[0095] Example 5:

[0096] Embodiment 5 of the present invention is a further improvement on Embodiment 3 in order to fully leverage the technical advantages of the present invention. The following is an illustrative example.

[0097] For example, at least one groove (not shown in the figure) is provided on the support horizontal plate along the axial direction of the rolling power structure. The first hydraulic module is equipped with a slide block that is slidably connected to the groove. The support horizontal plate is also provided with a sliding drive structure for driving the slide block to slide on the groove. The position of the first hydraulic module on the horizontal plate 5 can be adjusted by the sliding drive structure to suit different project requirements.

[0098] Furthermore, in embodiments 1 / 2 / 3, the auxiliary roller may also be equipped with a wall thickness measuring element 14 for determining the pipe wall thickness. The wall thickness measuring element 14 may be, but is not limited to, a radar device capable of emitting laser (or millimeter waves, etc.). The radar device may be, but is not limited to, commercially available lidar, millimeter-wave radar, ultrasonic radar, etc. The wall thickness measuring element 14 can measure or directly calculate the pipe wall thickness, used to determine whether it is necessary to first thin the pipe wall, and automatically select between a grooving process and a rolling process based on the wall thickness.

[0099] Furthermore, in embodiments 1 / 2 / 3, the tube support structure includes at least two second hydraulic modules 15 arranged vertically. The output end of the second hydraulic module 15 is connected to the clamp 16. The tube support structure forms a multi-point contact support on the outside of the tube 2. The multi-point contact support helps to support the tube more stably, and the low friction will not hinder the tube from rolling with the grooving mold / cutting mold.

[0100] Furthermore, in embodiments 1 / 2 / 3, the clamp 16 can be U-shaped. Preferably, the clamp 16 is an adjustable clamp that only provides support during grooving and can be tightened to firmly fix the steel pipe during wall cutting.

[0101] Furthermore, in embodiments 1 / 2 / 3, an auxiliary wheel 17 can be fitted to the end of the clamp 16 furthest from the second hydraulic module 15. The auxiliary wheel 17 helps reduce the friction between the clamp and the tube body. The tube body support structure provides at least four-point contact support to the outer side of the tube body 2. Figure 1 As shown, the pipe support structure provides four-point contact support to the outer side of pipe 2; as Figure 6 As shown, the tube support structure forms a six-point contact support on the outer side of tube 2, which helps to support the tube more stably and assists tube 2 in rolling with the grooving mold / cutting mold. The second hydraulic module can be, but is not limited to, a hydraulic cylinder, hydraulic rod, etc.

[0102] Furthermore, in embodiments 1 / 2 / 3, it can be considered that the second hydraulic modules 15 in the tube support structure are arranged in a staggered manner.

[0103] Example 6:

[0104] This rapid grooving machine can also be used in conjunction with a pipe manipulator assembly for moving pipes. The pipe manipulator assembly may include a pipe manipulator structure for gripping the pipe, and may also include a pipe manipulator arm structure for moving the pipe manipulator structure, enabling rapid movement and replacement of pipes.

[0105] Example 7:

[0106] A rapid grooving method without thickness limitations includes the following steps:

[0107] Step 1: Determine the pipe wall thickness

[0108] If the pipe wall thickness is greater than the required thickness for the groove, proceed to step two; otherwise, proceed to step four.

[0109] Step 2: Prepare for grooving

[0110] When the grooving mold and the cutting mold are assembled on the same support roller, the groove to be made in the tube is moved to the cutting mold by the tube support structure, and the inner wall of the tube is pressed tightly against the cutting mold.

[0111] When the grooving mold and the cutting mold are respectively mounted on different support rollers, the cutting mold is mounted at the output end of the rolling power structure. The groove to be made in the tube is moved to the cutting mold by the tube support structure, and the inner wall of the tube is pressed tightly against the cutting mold.

[0112] Step 3: Begin grooving

[0113] The rolling power structure drives the cutting die to roll, and the tube support structure supports and assists the tube to roll with the cutting die. The cutting die cuts the inner wall of the tube until the tube wall thickness is not greater than the required thickness for grooving, thus completing the grooving process. Then, proceed to step four.

[0114] Step 4: Prepare the grooving

[0115] When the grooving mold and the cutting mold are assembled on the same support roller, the groove to be made in the tube is moved to the grooving mold by the tube support structure, and the inner wall of the tube is pressed tightly against the grooving mold.

[0116] When the grooving mold and the cutting mold are respectively mounted on different support rollers, the grooving mold is mounted at the output end of the rolling power structure. The groove to be made in the tube is moved to the grooving mold by the tube support structure, and the inner wall of the tube is tightly attached to the grooving mold.

[0117] Step 5: Begin grooving

[0118] The rolling power structure drives the grooving mold to roll, the pipe body support structure supports and assists the pipe body to roll with the grooving mold, and the mold driving structure drives the groove mold to move down. The groove concave ring cooperates with the grooving protrusion to process the standard groove on the pipe body, thus completing the grooving process.

[0119] The above embodiments have provided a detailed description of the present invention, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A method for creating a groove using a high-speed groove-making machine with no thickness limitation, characterized in that: The slotting machine includes: A rolling power structure, the output end of which is connected to a power assembly, wherein the output end of the rolling power structure is equipped with a grooving mold and / or a cutting mold; The groove mold is at least one in number. The groove mold and the grooving mold cooperate to form a grooving module. The groove mold and the cutting mold cooperate to form a grooving module. The groove mold is connected to the mold driving structure. A tube support structure is provided to support the tube so that the portion of the tube to be grooved extends into the grooving module and / or cutting module. The tube support structure assists the grooving mold / cutting mold in driving the tube to roll. The groove mold includes an auxiliary roller and at least one groove protrusion formed by a circumferential protrusion along the auxiliary roller. The auxiliary roller is rotatably mounted on a roller support frame. The mold drive structure includes a first hydraulic module mounted on a support plate. The free end of the hydraulic rod of the first hydraulic module is connected to the roller support frame. The auxiliary roller is also provided with a wall thickness measuring element for determining the wall thickness of the pipe. The grooving mold includes a first support roller and at least one groove concave ring formed circumferentially inward along the first support roller. The groove concave ring is adapted to the shape of the grooving protrusion and assists the grooving protrusion in pressing the groove. The cutting mold includes a second support roller and at least one cutting tool formed by a circumferential protrusion along the second support roller; The method for making a trough includes the following steps: Step 1: Determine the pipe wall thickness If the pipe wall thickness is greater than the required thickness for the groove, proceed to step two; otherwise, proceed to step four. Step 2: Prepare for grooving When the first support roller and the second support roller are coaxially arranged and detachably connected to the power assembly through the mold assembly hole, the groove to be made of the tube body is moved to the cutting mold by the tube body support structure, and the inner wall of the tube body is tightly attached to the cutting mold. When the first support roller and the second support roller are detachably connected to the power assembly through their respective mold assembly holes, a cutting mold is assembled at the output end of the rolling power structure, and the groove to be made in the tube body is moved to the cutting mold by the tube body support structure, and the inner wall of the tube body is tightly attached to the cutting mold. Step 3: Begin grooving The rolling power structure drives the cutting die to roll, and the tube support structure supports and assists the tube to roll with the cutting die. The cutting die cuts the inner wall of the tube until the tube wall thickness is not greater than the required thickness for grooving, thus completing the grooving process. Then, proceed to step four. Step 4: Prepare the grooving When the first support roller and the second support roller are coaxially arranged and detachably connected to the power assembly through the mold assembly hole, the groove to be made of the tube body is moved to the grooving mold by the tube body support structure, and the inner wall of the tube body is tightly attached to the grooving mold. When the first support roller and the second support roller are detachably connected to the power assembly through their respective mold assembly holes, a grooving mold is assembled at the output end of the rolling power structure, and the groove to be made part of the tube is moved to the grooving mold by the tube support structure, and the inner wall of the tube is tightly attached to the grooving mold. Step 5: Begin grooving The rolling power structure drives the grooving mold to roll, the pipe body support structure supports and assists the pipe body to roll with the grooving mold, and the mold drive structure drives the groove mold to move down. The groove concave ring cooperates with the grooving protrusion to process the standard groove on the pipe body, thus completing the grooving process.

2. The method for making a groove using a high-speed groove-making machine with no thickness limitation according to claim 1, characterized in that: It also includes a main support structure, which includes a support base, a support vertical plate, and a support horizontal plate connected in sequence. The rolling power structure is set on the support base, and the output end of the rolling power structure passes through the support vertical plate and is connected to the power assembly.

3. The method for making a groove using a rapid groove-making machine with no thickness limitation according to claim 1, characterized in that: The first and second support rollers are coaxially arranged and detachably connected to the power assembly through the mold assembly hole. There are two groove molds, one of which cooperates with the grooving mold to form a grooving module, and the other groove mold cooperates with the cutting mold to form a cutting module.

4. The method for making a groove using a rapid groove-making machine with no thickness limitation according to claim 1, characterized in that: The tube support structure includes at least two second hydraulic modules arranged vertically. The output end of the second hydraulic module is connected to the clamp. The tube support structure provides multi-point contact support to the outside of the tube.

5. The method for making a groove using a rapid groove-making machine with no thickness limitation according to claim 4, characterized in that: The clamp has a U-shaped structure, and an auxiliary wheel is fitted to the end of the clamp away from the second hydraulic module. The tube support structure provides at least four-point contact support to the outside of the tube.

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